Served in the French army (c. 1734-43).
French ambassador to Rome (1749-52) and
Prussia (1756). Represented France in the peace
negotiations following the Seven Years’ War
(1762-63). Minister of state (1787-89).
Member of the Académie française (1743) and
the Royal Society (1763). Published numerous
literary essays and translations.

Son of Philippe-Jules-François and Marie-
Anne (Spinola) Mazarini-Mancini. Married
Hélène-Angélique-Françoise Phélypeaux de
Pontchartrain (1730); four children.